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| Three-dimensional porous titanium nitride as a highly efficient sulfur host |
| Author Name | Affiliation | E-mail | | LIU Ruiqing | State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials IAM, School of Materials Science & Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China | iamrqliu@njupt.edu.cn | | LIU Wenxiu | State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials IAM, School of Materials Science & Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China | | | XIE Kun | State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials IAM, School of Materials Science & Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China | | | LIU Yiran | State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials IAM, School of Materials Science & Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China | | | CHENG Hui | State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials IAM, School of Materials Science & Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China | | | WANG Xiaoyu | State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials IAM, School of Materials Science & Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China | | | TIAN Chenxu | State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials IAM, School of Materials Science & Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China | | | LIN Xiujing | State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials IAM, School of Materials Science & Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China | | | FENG Xiaomiao | State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials IAM, School of Materials Science & Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China | iamxmfeng@njupt.edu.cn |
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| Abstract: A simple, efficient, and scalable one-step high-temperature nitriding method was used to convert titanium dioxide into titanium nitride, meanwhile, the continuous three-dimensional porous network with good electrical conductivity and high porosity was formed under high-temperature sintering. As a highly efficient sulfur host, the continuous three-dimensional porous titanium nitride network not only effectively increases the electron transport path, enhances the electron transfer, and promotes the ion migration, but also strongly restricts the shuttle effect of lithium polysulfides from both physical limiting and chemisorption, and effectively increases the sulfur loading. The as-prepared sulfur cathode with high conductivity, high catalytic activity, and high sulfur loading shows high discharge capacity and excellent cyclic stability. |
| Keywords: Li-S battery high temperature sintering titanium dioxide titanium nitride three-dimensional porous material |
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| LIU Ruiqing,LIU Wenxiu,XIE Kun,LIU Yiran,CHENG Hui,WANG Xiaoyu,TIAN Chenxu,LIN Xiujing,FENG Xiaomiao.Three-dimensional porous titanium nitride as a highly efficient sulfur host[J].Chinese Journal of Inorganic Chemistry,2024,40(5):867-876. |
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